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Gears: Lift It Up!
| Content Provider | TeachEngineering: STEM curriculum for K-12 |
|---|---|
| Author | Laut, Jeffrey Phamduy, Paul |
| Copyright Year | 2015 |
| Description | Student teams are challenged to design a gear set that will lift a given load as quickly as possible. They test and refine their designs to find the ideal gear ratio, one that provides enough torque to lift the weight while still achieving the fastest speed possible. A gear is a simple machine that is very useful to increase the speed or torque of a wheel. In this activity, students learn about the trade-off between speed and torque when designing gear ratios. The activity setup includes a LEGO® MINDSTORMS® pulley system with two independent gear sets and motors that spin two pulleys. Each pulley has weights attached by string. In a teacher demonstration, the effect of adding increasing amounts of weight to the pulley systems with different gear ratios is observed as the system's ability to lift the weights is tested. Then student teams are challenged to design a gear set that will lift a given load as quickly as possible. They test and refine their designs to find the ideal gear ratio, one that provides enough torque to lift the weight while still achieving the fastest speed possible. |
| Language | English |
| Access Restriction | Open |
| Rights Holder | Regents of The University of Colorado Polytechnic Institute of New York University |
| Subject Keyword | Measurement Physical Science Science and Technology Gear Ratio Robot Optimize Lifting Mechanical Advantage Simple Machine Power Ratio |
| Content Type | Text |
| Time Required | PT45M |
| Education Level | Class V Class VI Class VII |
| Pedagogy | Experimental Activity |
| Resource Type | Hands-on |
| Subject | Physics Geometry Technical |
